Temperature control magnetic stirrer and temperature control magnetic stirring equipment

Abstract

The utility model relates to a temperature control magnetic stirrer and temperature control magnetic stirring equipment. The temperature control magnetic stirrer comprises a base; the temperature control module comprises a bearing table, the bearing table is arranged on the base, the bearing table is used for bearing a plurality of reaction containers, and the bearing table is provided with a refrigerating assembly used for refrigerating the reaction containers and a heating assembly used for heating the reaction containers; the magnetic driving module is arranged on the base and located on the side, away from the reaction container, of the bearing table, the magnetic driving module comprises a driving mechanism and at least two magnetic parts, and the driving mechanism is used for driving the at least two magnetic parts to rotate so as to drive magnetons in the reaction container to rotate. According to the technical scheme provided by the invention, the stirring consistency among different reaction containers can be improved, and the temperature control efficiency is high.

Description

Technical Field

[0001] The present application relates to the technical field of experimental equipment, and in particular to a temperature-controlled magnetic stirrer and a temperature-controlled magnetic stirring device. Background Art

[0002] During chemical synthesis and crystallization experiments, samples often need to be physically stirred to achieve uniform mixing. Traditional stirring methods are relatively complicated and pose safety risks because they are contact stirring. In addition, many reactants are sensitive to ambient temperature and require strict temperature control. In related technologies, a magnetic stirrer is used for stirring. The magnetic stirrer uses the principle of like charges repelling and opposite charges attracting in the magnetic field, and uses the magnetic field to drive a magnetic stirrer placed in a container to perform a circular motion, thereby achieving the purpose of stirring the liquid.

[0003] However, in the related art, when a magnetic stirrer is used to stir multiple reaction containers simultaneously, there is a problem of uneven stirring; in addition, a pipeline is generally used to heat or cool the liquid in the reaction container, and the temperature control efficiency is low. Utility Model Content

[0004] In order to solve or partially solve the problems existing in the related art, the present application provides a temperature-controlled magnetic stirrer and a temperature-controlled magnetic stirring device, which can improve the consistency of stirring between different reaction vessels and have high temperature control efficiency.

[0005] The first aspect of the present application provides a magnetic stirrer, comprising: a base; a temperature control module, comprising a carrier platform, the carrier platform is arranged on the base, the carrier platform is used to receive a plurality of reaction containers, the carrier platform is provided with a refrigeration component for cooling the plurality of reaction containers, and a heating component for heating the plurality of reaction containers; a magnetic drive module, arranged on the base and located on a side of the carrier platform away from the reaction container, the magnetic drive module comprising a drive mechanism and at least two magnetic parts, the drive mechanism is used to drive the at least two magnetic parts to rotate, so as to drive the magnets in the reaction container to rotate.

[0006] Furthermore, the refrigeration assembly includes a refrigeration liquid pipeline, the refrigeration liquid pipeline is arranged in the bearing platform, and the refrigeration liquid pipeline has a liquid inlet and a liquid outlet;

[0007] The temperature control module further includes a low temperature controller, which is communicated with the liquid inlet and the liquid outlet respectively.

[0008] Furthermore, the heating assembly includes a heating rod, a heating tube hole is provided in the supporting platform, and the heating rod is located in the heating tube hole;

[0009] The temperature control module also includes a temperature controller, and the temperature controller is electrically connected to the heating rod.

[0010] Furthermore, a water collecting tray is provided at the upper end of the base, the supporting platform is arranged on the water collecting tray, and the water collecting tray is provided with a drainage joint so that the condensed water generated by the supporting platform can flow to the water collecting tray and then be discharged through the drainage joint.

[0011] Furthermore, a plurality of the reaction containers are placed in a container rack, and the carrying platform is detachably connected to the container rack;

[0012] The carrying platform is provided with a positioning member, and the positioning member is used to limit the container rack to the carrying platform.

[0013] Furthermore, the refrigeration component includes a refrigeration liquid pipeline, the refrigeration liquid pipeline is arranged in the bearing platform, the heating component includes a heating rod, the bearing platform is provided with a heating pipe hole, and the heating rod is located in the heating pipe hole;

[0014] The refrigeration liquid pipeline and the heating rod are in the same horizontal plane in the supporting platform, or the refrigeration liquid pipeline and the heating rod are staggered up and down.

[0015] Furthermore, the driving mechanism includes a plurality of first driving motors, the first driving motors are connected to the magnetic members in a one-to-one correspondence, and the plurality of first driving motors are used to drive the corresponding magnetic members to rotate in the same direction simultaneously.

[0016] Furthermore, the magnetic member is a magnetic rod, and the axial direction of the magnetic rod is parallel to the height direction of the supporting platform; a plurality of the magnetic rods are arranged in an array.

[0017] Furthermore, a water collecting tray is provided at the upper end of the base, the carrying platform is provided on the water collecting tray, and the water collecting tray is provided with a drainage joint, so that the condensed water generated by the carrying platform can flow to the water collecting tray and then be discharged through the drainage joint;

[0018] The water collecting tray is provided with a plurality of through holes, the through holes corresponding to the positions of the magnetic bars, one end of the magnetic bar is connected to the first driving motor, and the other end of the magnetic bar passes through the through holes and extends toward the supporting platform.

[0019] Furthermore, the driving mechanism includes a second driving motor and a transmission assembly, the transmission assembly includes a driving gear and two driven gears, the two driven gears are relatively arranged on both sides of the driving gear and are respectively meshed with the driving gear, the second driving motor is connected to the driving gear, the driven gears are connected to the magnetic parts one by one, and the second driving motor is used to drive the driving gear to rotate to drive the two driven gears to rotate, so that the two magnetic parts rotate in the same direction.

[0020] Furthermore, the magnetic member is a plate-shaped magnet, the driven gear is connected to the center of the plate-shaped magnet, and the extension direction of the plate-shaped magnet is parallel to the surface of the supporting platform facing away from the reaction container.

[0021] A second aspect of the present application provides a temperature-controlled magnetic stirring device, comprising a transfer device and a temperature-controlled magnetic stirrer as described in any one of the above items, wherein the transfer device is used to take and place a reaction container on the temperature-controlled magnetic stirrer.

[0022] The technical solution provided by the present application may include the following beneficial effects: by synchronously driving the rotation of magnets in a plurality of reaction containers by at least two magnetic parts arranged at intervals, the plurality of reaction containers can be stirred more evenly compared to driving by only one magnetic part, thereby improving the consistency of stirring between different reaction containers; by respectively arranging a refrigeration component and a heating component on the temperature control module, the reaction containers can be cooled and heated. Compared to using one pipeline for heating and cooling, the temperature control module having both a refrigeration component and a heating component can heat and cool more quickly and efficiently.

[0023] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] The above and other objects, features and advantages of the present application will become more apparent by describing in more detail exemplary embodiments of the present application in conjunction with the accompanying drawings, wherein the same reference numerals generally represent the same components in the exemplary embodiments of the present application.

[0025] Figure 1 is a structural schematic diagram of a temperature-controlled magnetic stirrer shown in an embodiment of the present application;

[0026] Figure 2 is an exploded schematic diagram of a temperature-controlled magnetic stirrer shown in an embodiment of the present application;

[0027] Figure 3 is a schematic structural diagram of a driving mechanism shown in an embodiment of the present application;

[0028] Figure 4 yes Figure 3 A side cross-sectional view of the drive mechanism shown;

[0029] Figure 5 yes Figure 3 A top cross-sectional view of the drive mechanism shown;

[0030] Figure 6 is a schematic diagram of the structure of a temperature control module shown in an embodiment of the present application;

[0031] Figure 7is a cross-sectional view of a temperature control module shown in an embodiment of the present application;

[0032] Figure 8 is an exploded schematic diagram of a temperature-controlled magnetic stirrer shown in another embodiment of the present application;

[0033] Fig. 9 yes Figure 8 The structural schematic diagram of the temperature-controlled magnetic stirrer shown;

[0034] Fig.10 yes Figure 8 Another structural schematic diagram of the temperature-controlled magnetic stirrer shown.

[0035] Reference numerals:

[0036] 1-temperature control module, 1a-carrying platform, 2-base, 3-water collection tray, 4-fixed front vertical plate, 5-fixed rear vertical plate, 6-position sensor, 7-first drive motor, 8-temperature controller, 9-fan, 10-drainage connector, 11-cylindrical pin, 12-circular connector, 13-metal waterproof connector, 14-communication adapter chip, 15-circular connector, 16-fan protection net, 17-circular connector, 18-circular connector, 19-left cover assembly, 20-right cover assembly, 2 2-container rack, 23-mounting rack, 24-low temperature controller, 25-refrigeration liquid pipeline, 26-liquid inlet, 27-liquid outlet, 28-heating rod, 29-temperature sensor, 30-second drive motor, 31-transmission assembly, 32-driving gear, 33-driven gear, 34-gear box cover, 35-plate magnet, 36-pin shaft, 37-refrigeration liquid delivery pipe, 38-circuit board, 39-support plate, 40-bearing, 41-gear box, 42-pressure cover, 43-column. DETAILED DESCRIPTION

[0037] The embodiments of the present application will be described in more detail below with reference to the accompanying drawings. Although the embodiments of the present application are shown in the accompanying drawings, it should be understood that the present application can be implemented in various forms and should not be limited by the embodiments described herein. On the contrary, these embodiments are provided to make the present application more thorough and complete, and to fully convey the scope of the present application to those skilled in the art.

[0038] It should be understood that although the terms "first", "second", "third", etc. may be used in this application to describe various information, this information should not be limited to these terms. These terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of this application, the first information may also be referred to as the second information, and similarly, the second information may also be referred to as the first information. Thus, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of this application, the meaning of "multiple" is two or more, unless otherwise clearly and specifically defined.

[0039] In the description of the present application, it should be understood that the terms "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc., indicating the orientation or position relationship, are based on the orientation or position relationship shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0040] Unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, or a detachable connection or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0041] The technical solution of the embodiments of the present application is described in detail below with reference to the accompanying drawings.

[0042] Figure 1 is a schematic diagram of the structure of a temperature-controlled magnetic stirrer shown in an embodiment of the present application, Figure 2 is an exploded schematic diagram of a temperature-controlled magnetic stirrer shown in an embodiment of the present application, Figure 3 It is a structural schematic diagram of a driving mechanism shown in an embodiment of the present application.

[0043] like Figures 1 to 3As shown, an embodiment of the present application provides a temperature-controlled magnetic stirrer, including a base 2, a temperature control module 1 and a magnetic drive module, wherein the base 2 supports the temperature control module 1 and the magnetic drive module. The temperature control module 1 includes a carrier platform 1a, which is disposed on the base 2. The carrier platform 1a is used to receive a plurality of reaction containers, and the carrier platform 1a is provided with a refrigeration component for refrigerating the plurality of reaction containers, and a heating component for heating the plurality of reaction containers. The refrigeration component can cool the carrier platform 1a, thereby cooling the reaction containers on the carrier platform 1a, and the heating component can heat the carrier platform 1a, thereby heating the reaction containers on the carrier platform 1a, so that the temperature control module 1 can control the experimental temperature to meet the need for heating or cooling the samples in the reaction containers.

[0044] The magnetic drive module is arranged on the base 2 and located on the side of the carrier 1a away from the reaction container. The magnetic drive module includes a drive mechanism and at least two magnetic parts. The drive mechanism is connected to the at least two magnetic parts respectively, and is used to drive the at least two magnetic parts to rotate, so as to drive the magnetic particles in the reaction container to rotate. Among them, the carrier 1a can be made of aluminum alloy. In this way, when the magnetic part is rotated, the magnetic field of the magnetic part passes through the carrier 1a and drives the magnetic particles in the reaction container to rotate.

[0045] Among them, any two magnetic parts are arranged at intervals, and in order to reduce magnetic field interference, the distance between two adjacent magnetic parts is not less than a preset value. The preset value can be set according to an empirical value or experimental requirements or the magnetic force of the magnetic parts. The driving mechanism drives all magnetic parts to rotate synchronously. Preferably, the driving mechanism drives all magnetic parts to rotate simultaneously and in the same direction, such as rotating clockwise or counterclockwise at the same time. In addition, each magnetic part rotates around itself when rotating, so that each magnetic part can be regarded as a magnetic field center, thereby forming a multi-center magnetic field stirring, which can increase the coverage of the magnetic field and make the magnetic force distribution more uniform.

[0046] By synchronously driving the magnets in multiple reaction containers to rotate through at least two spaced-apart magnetic parts, the magnetic field has at least two magnetic field centers. Compared with the related art in which only one magnetic part is used to drive the multiple reaction containers, the multiple reaction containers can be stirred more evenly and the consistency of stirring between different reaction containers is improved. By respectively arranging a refrigeration component and a heating component on the temperature control module 1, the refrigeration component and the heating component are separately arranged to cool and heat the reaction containers. Compared with using a pipeline for heating and cooling, the speed of converting the carrier 1a from cold to hot is faster, so as to quickly realize precise temperature control and meet the experimental requirements of rapid temperature control.

[0047] In some embodiments, Figure 3 and Figure 4As shown, in this embodiment, there are two magnetic parts arranged opposite to each other on the left and right, and the two magnetic parts are self-rotating with the same starting posture, the same rotation direction and speed to ensure the uniformity of the magnetic field.

[0048] The reaction container can be a test tube, a solvent bottle, a centrifuge tube, etc. Figure 1 and Figure 2 As shown, in this embodiment, a plurality of reaction vessels are placed on a container rack 22, and then the container rack 22 is placed on the carrier 1a, and the carrier 1a cools or heats the container rack 22, thereby cooling or heating the reaction vessels on the container rack 22. By replacing container racks 22 of different specifications, reaction vessels of different specifications can be heated or cooled, and the outside of the container rack 22 can be covered with heat preservation cotton to reduce temperature loss and improve the heat transfer efficiency of the container rack 22. A limiting structure can be set between the carrier 1a and the container rack 22 to limit the container rack 22, for example, a positioning pin is set on the carrier 1a, and a positioning hole matching the positioning pin is set on the container rack 22, or a positioning pin is set on the container rack 22, and a positioning hole is set on the carrier 1a. The positioning pin and the positioning hole together constitute the above-mentioned limiting structure, and the two cooperate with each other to limit the container rack 22 to the carrier 1a, which can prevent the container rack 22 from falling off the carrier 1a, and ensure that the placement position of the container rack 22 on the carrier 1a is consistent each time.

[0049] In some embodiments, the reaction container can be directly placed on the carrier 1a, or a container hole can be provided on the carrier 1a to place the reaction container. A plurality of reaction containers can be arranged in an array.

[0050] In some embodiments, Figure 6 and Figure 7 As shown, the refrigeration assembly includes a refrigeration liquid pipeline 25, which is arranged in the support platform 1a. The refrigeration liquid pipeline 25 has a liquid inlet 26 and a liquid outlet 27. The refrigerant enters the refrigeration liquid pipeline 25 through the liquid inlet 26 and then flows out from the liquid outlet 27, thereby cooling the support platform 1a. The refrigeration liquid pipeline 25 can be a liquid circulation channel opened in the support platform 1a. The channel can be located inside the support platform 1a, or it can at least partially penetrate the support platform 1a and be exposed to the outside. Specifically, as Figure 7 As shown, in this embodiment, the refrigerant liquid pipeline 25 is opened inside the carrier platform 1a, the liquid inlet 26 and the liquid outlet 27 are located on the same side of the carrier platform 1a, and the refrigerant liquid pipeline 25 is in an M-shaped structure inside the carrier platform 1a. In addition, the liquid inlet 26 and the liquid outlet 27 can also be located on different sides of the carrier platform 1a, and the refrigerant liquid pipeline 25 can also be in other shapes, such as a serpentine structure, an S-shaped structure, a square wave structure, etc., which are not limited here.

[0051] It is understandable that, for the convenience of processing, the refrigeration liquid pipeline 25 can be opened along one side surface (such as the upper surface or the lower surface) of the carrier 1a. To prevent leakage of the exposed part of the refrigeration liquid pipeline 25, a sealing gasket can be arranged along the refrigeration liquid pipeline 25 on the surface, and a sealing pressure plate can be arranged outside the sealing gasket to seal the refrigeration liquid pipeline 25 to prevent leakage from causing pollution and affecting the refrigeration effect.

[0052] Wherein, the temperature control module 1 also includes a cryostat 24, and the cryostat 24 is respectively connected to the liquid inlet 26 and the liquid outlet 27 through a refrigerant delivery pipe 37. The cryostat 24 is used to provide a refrigerant liquid to the refrigerant liquid pipeline 25, so that the refrigerant liquid circulates and flows, and the liquid flowing into the refrigerant liquid pipeline 25 is temperature controlled. The cryostat 24 may include a refrigeration pump, and the refrigerant liquid may be water or silicone oil, and the carrier 1a may be made of aluminum alloy. The present embodiment adopts a temperature control method of a metal bath, and compared with a traditional water bath or oil bath, the temperature rise and fall speed of the metal bath is faster, and it is possible to avoid the reaction sample from being contaminated and water or oil adhering to the outer wall of the reaction vessel to affect subsequent detection operations.

[0053] It is understandable that in some usage scenarios, the refrigeration component can also be used for heating operations, that is, the refrigeration component can achieve both refrigeration and heating. Preferably, the refrigeration liquid is silicone oil. Compared with water, silicone oil is suitable for a wider range of temperature requirements, such as -50 degrees to 200 degrees, and can be used for both low-temperature experiments and high-temperature experiments. That is, the temperature control range of the refrigeration component can reach -50 degrees to 200 degrees. Preferably, the temperature control range of the refrigeration component is -20 degrees to 150 degrees.

[0054] In some embodiments, Figure 7 As shown, the heating assembly includes a heating rod 28, and a heating tube hole is provided in the carrier 1a, and the heating rod 28 is located in the heating tube hole. Specifically, in this embodiment, there are two heating rods 28, and the two heating rods 28 are arranged opposite to each other at intervals. The heating rods 28 are arranged in the horizontal direction and are parallel to the length direction of the carrier 1a. The distance between the two heating rods 28 is approximately one-third of the width of the carrier 1a, and the distance between the heating rod 28 and the nearest edge of the carrier 1a in the length direction is also approximately one-third of the width of the carrier 1a, so that the two heating rods 28 are basically centered in the carrier 1a to ensure uniformity during heating. In some embodiments, the number of heating rods 28 can be greater than two, and they are arranged at intervals in the carrier 1a. Multiple heating rods 28 can be arranged side by side or staggered at equal intervals. Optionally, the heating rod 28 can be in the same horizontal plane as the refrigeration liquid pipeline 25. If there are multiple heating rods 28, the heating rods 28 and the refrigeration liquid pipeline 25 are staggered with each other; or the heating rods 28 and the refrigeration liquid pipeline 25 are staggered up and down and located at different horizontal planes.

[0055] Among them, Figure 2 As shown, the temperature control module 1 also includes a temperature controller 8, which is electrically connected to the heating rod 28. The temperature controller 8 is used to control the operation of the heating rod 28. The heating component may also include a temperature display module, which is electrically connected to the temperature controller 8 and is used to display the current temperature in real time. A mounting frame 23 for mounting the temperature controller 8 is provided on the base 2.

[0056] It is understandable that the refrigeration component and the heating component are set separately and independently. Compared with heating through the liquid circuit, the heating rod 28 is used to achieve heating, and its heating speed is faster, which can meet the experimental requirements of rapid heating. In this embodiment, the temperature control range of the heating component can be room temperature-150 degrees. In addition, a heating film can be used instead of the heating rod 28 to heat the carrier 1a, and the heating film can be provided on the upper surface or the lower surface of the carrier 1a. In some usage scenarios, the heating rod 28 and the refrigeration liquid circuit pipeline 25 can be used for heating at the same time to make the reaction vessel heated more evenly.

[0057] In some embodiments, the carrying platform 1a is covered with heat-insulating cotton, and a protective cover can be provided outside the heat-insulating cotton. The heat-insulating cotton is high-temperature resistant and is arranged around the outer periphery of the carrying platform 1a, and the protective cover protects the carrying platform 1a.

[0058] In some embodiments, Figure 2 and Figure 6 As shown, a water collecting pan 3 is provided at the upper end of the base 2, the carrying platform 1a is provided on the water collecting pan 3, and the water collecting pan 3 is provided with a drainage joint 10, so that the condensed water generated by the carrying platform 1a can flow to the water collecting pan 3 and then be discharged through the drainage joint 10. Specifically, when the temperature-controlled magnetic stirrer performs low-temperature magnetic stirring in an open environment, condensed water will be formed outside the carrying platform 1a, and then collected into the water collecting pan 3 along the carrying platform 1a, and then discharged through the drainage joint 10.

[0059] In some embodiments, the base 2 has a accommodating cavity, the magnetic driving module is arranged in the accommodating cavity, the supporting platform 1a is located on the upper surface of the base 2, and the supporting platform 1a and the magnetic driving module are arranged opposite to each other up and down. In this way, the magnetic field generated by the magnetic driving module passes through the supporting platform 1a directly above and acts on the magnets in the reaction container located on the supporting platform 1a.

[0060] In some embodiments, Figure 7 As shown, the temperature control module 1 also includes a temperature sensor 29. The temperature sensor 29 can be set on the support platform 1a to detect the temperature of the support platform 1a. The temperature sensor 29 can be electrically connected to the temperature controller 8 and / or the low-temperature controller 24 to feedback the temperature of the support platform 1a so that the temperature controller 8 and / or the low-temperature controller 24 can perform temperature adjustment.

[0061] In some embodiments, Figure 1 and Figure 2As shown, a plurality of reaction containers are placed in the container rack 22, and the carrier platform 1a is detachably connected to the container rack 22; the carrier platform 1a is provided with a positioning member, and the positioning member is used to limit the container rack 22 on the carrier platform 1a. Specifically, the positioning member can be a positioning pin, which is arranged on the upper surface of the carrier platform 1a, and the bottom of the container rack 22 can be provided with a positioning hole matching the positioning pin, and the positioning pin is inserted into the positioning hole to limit the container rack 22. It can be understood that the positioning member can also be a positioning hole arranged on the upper surface of the carrier platform 1a, and the bottom of the container rack 22 is provided with a positioning pin adapted thereto. The positioning pin and the positioning hole cooperate with each other to realize the limiting and detachable connection of the container rack 22 on the carrier platform 1a, so as to facilitate the taking, placing and replacement of the container rack 22.

[0062] In some embodiments, the refrigeration component includes a refrigeration liquid pipeline 25, which is disposed in the carrier 1a, and the heating component includes a heating rod 28, which is provided with a heating tube hole in the carrier 1a, and the heating rod 28 is located in the heating tube hole; the refrigeration liquid pipeline 25 and the heating rod 28 are in the same horizontal plane in the carrier 1a, or the refrigeration liquid pipeline 25 and the heating rod 28 are staggered up and down. Figure 7 As shown, when the cooling liquid pipeline 25 and the heating rod 28 are at the same horizontal plane in the carrier 1a, the thickness of the carrier 1a can be made thinner, which is beneficial to heat transfer and the magnetic member driving the magnetic sub to rotate. When the cooling liquid pipeline 25 and the heating rod 28 are staggered up and down, the cooling liquid pipeline 25 and the heating rod 28 can be better prevented from interfering, more heating rods 28 can be set, and the cooling liquid pipeline 25 can be distributed more densely, so that the temperature distribution is more uniform.

[0063] In some embodiments, Figures 3 to 5 As shown, the driving mechanism includes a second driving motor 30 and a transmission assembly 31. The transmission assembly 31 includes a driving gear 32 and two driven gears 33. The two driven gears 33 are arranged on both sides of the driving gear 32 and mesh with the driving gear 32 respectively. The second driving motor 30 is connected to the driving gear 32, and the driven gears 33 are connected to the magnetic parts in a one-to-one correspondence. The second driving motor 30 is used to drive the driving gear 32 to rotate to drive the two driven gears 33 to rotate, so that the two magnetic parts rotate in the same direction.

[0064] Specifically, the transmission assembly 31 has a gear box 41, a driving gear 32 and two driven gears 33 are rotatably arranged in the gear box 41, two support plates 39 are arranged at the lower end of the gear box 41, and the support plates 39 are connected to the base 2 for supporting the gear box 41, and the second drive motor 30 is located at the lower end of the gear box 41. Among them, the diameter of the driving gear 32 is larger than the diameter of the two driven gears 33, so the output speed of the second drive motor 30 can be increased, and the speed of the magnetic part can be increased. For example, the output speed of the second drive motor 30 is 600r / min (revolutions / minute), and the speed of the magnetic part can be increased to 1200r / min after the transmission assembly 31 increases the speed.

[0065] In some embodiments, Figure 3 and Figure 4 As shown, the magnetic member is a plate magnet 35, the driven gear 33 is connected to the center of the plate magnet 35, and the extension direction of the plate magnet 35 is parallel to the surface of the supporting platform 1a facing away from the reaction container, that is, the plate magnet 35 is arranged in a horizontal direction.

[0066] Among them, a pin shaft 36 is provided on the driven gear 33, and a magnetic part is provided on the pin shaft 36. The driven gear 33 drives the magnetic part to rotate through the pin shaft 36. A position sensor 6 for detecting the rotation position of the pin shaft 36 is provided on the gear box 41. The pin shaft 36 is provided with a sensing piece matching the position sensor 6. In this way, when the pin shaft 36 rotates, the sensing piece is driven to rotate, so that the position sensor 6 can detect the rotation position of the pin shaft 36 by detecting the sensing piece.

[0067] Specifically, a pressure cover 42 is provided at the upper end of the gear box 41 for covering the upper end of the gear box 41 , and the pin shaft 36 is rotatably connected to the gear box 41 through a bearing 40 .

[0068] In some embodiments, Figure 6 As shown, a column 43 is provided at the lower end of the water collecting tray 3, and the lower end of the column 43 is connected to the base 2, and the column 43 is used to support the water collecting tray 3. Figure 2 As shown, the outer periphery of the gear box 41 is provided with an outer cover 34, which is used to protect the gear box 41 and other components. A circuit board 38 is also provided on the base 2, and the circuit board 38 includes a control chip and a drive chip, etc., which are used to be electrically connected to the second drive motor 30 to control the second drive motor 30 to rotate.

[0069] Figure 8 is an exploded schematic diagram of a temperature-controlled magnetic stirrer shown in another embodiment of the present application, Fig. 9 yes Figure 8 The schematic diagram of the structure of the temperature-controlled magnetic stirrer is shown in FIG. Fig.10 yes Figure 8 Another schematic diagram of the structure of the temperature-controlled magnetic stirrer shown in FIG. Figures 8 to 10As shown, in some embodiments, the driving mechanism includes a plurality of first driving motors 7, the first driving motors 7 are connected to the magnetic members one by one, and the plurality of first driving motors 7 are used to drive the corresponding magnetic members to rotate in the same direction at the same time. Each first driving motor 7 is provided with a magnetic member, and the plurality of magnetic members can be evenly arranged under the carrier 1a to make the magnetic field distribution more uniform, so that the plurality of reaction vessels are stirred more uniformly, and the consistency of stirring between different reaction vessels is improved.

[0070] Specifically, in this embodiment, there are twelve first drive motors 7, which are distributed in a 3×4 matrix. The twelve first drive motors 7 are located below the water collecting tray 3, and the first drive motors 7 can be stepper motors. The number and position of the reaction containers on the carrier 1a can be matched with the number and position of the magnetic parts, that is, one magnetic part drives the magnetic particles in one reaction container. It can be understood that the number of reaction containers can also be more or less than the number of magnetic parts, for example, the number of reaction containers is 24, 48, etc.

[0071] like Figure 8 As shown, the temperature-controlled magnetic stirrer also includes a position sensor 6 for detecting the rotation position of the output shaft of the first drive motor 7. The number of the position sensors 6 is the same as the number of the first drive motors 7 and is arranged one-to-one with the first drive motors 7. The output shaft of the first drive motor 7 is provided with an induction sheet matching the position sensor 6. When the output shaft of the first drive motor 7 rotates to a specific position, the position sensor 6 detects the induction sheet, thereby achieving the effect of detecting the rotation state of the first drive motor 7.

[0072] In some embodiments, Figure 8 As shown, the magnetic member is a magnetic bar, the axis direction of the magnetic bar is parallel to the height direction of the carrier 1a; multiple magnetic bars are arranged in an array. The magnetic field generated by multiple magnetic bars is more uniform than the magnetic field generated by only one magnetic member, so that multiple reaction containers can be stirred more uniformly.

[0073] In some embodiments, Figure 8 As shown, the water collecting tray 3 is provided with a plurality of through holes, which correspond to the positions of the magnetic bars. One end of the magnetic bar is connected to the first driving motor 7, and the other end of the magnetic bar extends through the through hole toward the supporting platform 1a, so that the upper end of the magnetic bar can be closer to the reaction container, generating a greater magnetic force to drive the magnet. Using magnetic bars instead of plate magnets can make more magnetic parts distributed and the magnetic field cover a wider range, while minimizing the magnetic field interference between adjacent magnetic parts, and further improving the stirring uniformity.

[0074] The upper surface of the water collecting tray 3 is provided with a cylindrical pin 11 for limiting the position of the bearing platform 1a. The cylindrical pin 11 can be inserted into the corresponding limiting hole on the bearing platform 1a, thereby preventing the bearing platform 1a from moving.

[0075] like Figures 8 to 10 As shown, in this embodiment, the base 2 is provided with a fixed front vertical plate 4, a fixed rear vertical plate 5, a left cover assembly 19 and a right cover assembly 20, and the fixed front vertical plate 4, the fixed rear vertical plate 5, the left cover assembly 19 and the right cover assembly 20 are enclosed on the base 2 to form an installation chamber, and components such as the magnetic drive module, the temperature controller 8 and the position sensor 6 are placed in the installation chamber. The fixed front vertical plate 4 and the fixed rear vertical plate 5 are respectively provided with a fan 9 for dissipating heat from the components in the installation chamber, and the fan 9 can be an axial flow fan 9. The fixed front vertical plate 4 and the fixed rear vertical plate 5 are respectively provided with a fan protection net 16 covering the fan 9. The left cover assembly 19 is used to protect internal components and install the fan 9, and the right cover assembly 20 is used to protect internal components and install the fan 9. Among them, the fixed front vertical plate 4, the fixed rear vertical plate 5, the left cover assembly 19 and the right cover assembly 20 can constitute the above-mentioned outer cover 34.

[0076] In addition, a metal waterproof connector 13 is provided for routing the power line of the heating rod 28. A communication adapter chip 14 is also provided in the installation chamber, and the communication adapter chip 14 is used to transfer the chips that control various electrical components. A circular connector 12 is provided on the fixed front vertical plate 4 and the fixed rear vertical plate 5 respectively, and the circular connector 12 is a 220V power interface. A circular connector 15, a circular connector 17 and a circular connector 18 are also provided on the fixed rear vertical plate 5, and the circular connector 15 is an I / O communication interface. The circular connector 17 is other electrical interfaces. The circular connector 18 is a 24V power interface.

[0077] The embodiment of the present application also provides a temperature-controlled magnetic stirring device, including a transfer device and the temperature-controlled magnetic stirrer described in the above embodiment, wherein the transfer device is used to take and place the reaction container on the temperature-controlled magnetic stirrer. In this way, a fully automatic experimental process can be realized. Specifically, the transfer device can be a mobile robot, a multi-degree-of-freedom mechanical arm, or an XYZ three-axis translation mechanism, etc.

[0078] The scheme of the present application has been described in detail above with reference to the accompanying drawings. In the above embodiments, the descriptions of the various embodiments have their own emphasis. For parts that are not described in detail in a certain embodiment, reference can be made to the relevant descriptions of other embodiments. Those skilled in the art should also be aware that the actions and modules involved in the specification are not necessarily required for the present application. In addition, it can be understood that the steps in the method of the embodiment of the present application can be adjusted in order, merged and deleted according to actual needs, and the modules in the device of the embodiment of the present application can be merged, divided and deleted according to actual needs.

[0079] The embodiments of the present application have been described above, and the above description is exemplary, not exhaustive, and is not limited to the disclosed embodiments. Many modifications and changes will be apparent to those of ordinary skill in the art without departing from the scope and spirit of the described embodiments. The selection of terms used herein is intended to best explain the principles of the embodiments, practical applications, or improvements to the technology in the market, or to enable other persons of ordinary skill in the art to understand the embodiments disclosed herein.

Claims

1. A temperature-controlled magnetic stirrer, characterized in that: include: Base; The temperature control module comprises a carrying platform, the carrying platform is arranged on the base, the carrying platform is used to receive a plurality of reaction containers, the carrying platform is provided with a refrigeration component for refrigerating the plurality of reaction containers, and a heating component for heating the plurality of reaction containers; The magnetic driving module is arranged on the base and located on the side of the supporting platform away from the reaction container. The magnetic driving module includes a driving mechanism and at least two magnetic parts. The driving mechanism is used to drive the at least two magnetic parts to rotate, so as to drive the magnets in the reaction container to rotate.

2. The temperature-controlled magnetic stirrer according to claim 1, characterized in that: The refrigeration assembly comprises a refrigeration liquid pipeline, the refrigeration liquid pipeline is arranged in the bearing platform, and the refrigeration liquid pipeline has a liquid inlet and a liquid outlet; The temperature control module further includes a low temperature controller, which is communicated with the liquid inlet and the liquid outlet respectively.

3. The temperature-controlled magnetic stirrer according to claim 1, characterized in that: The heating assembly includes a heating rod, a heating tube hole is provided in the bearing platform, and the heating rod is located in the heating tube hole; The temperature control module also includes a temperature controller, and the temperature controller is electrically connected to the heating rod.

4. The temperature-controlled magnetic stirrer according to claim 1, characterized in that: A water collecting tray is provided at the upper end of the base, the supporting platform is arranged on the water collecting tray, and the water collecting tray is provided with a drainage joint so that the condensed water generated by the supporting platform can flow to the water collecting tray and then be discharged through the drainage joint.

5. The temperature-controlled magnetic stirrer according to claim 1, characterized in that: A plurality of the reaction containers are placed in a container rack, and the carrying platform is detachably connected to the container rack; The carrying platform is provided with a positioning member, and the positioning member is used to limit the container rack to the carrying platform.

6. The temperature-controlled magnetic stirrer according to claim 1, characterized in that: The refrigeration component includes a refrigeration liquid pipeline, and the refrigeration liquid pipeline is arranged in the bearing platform. The heating component includes a heating rod, and a heating pipe hole is arranged in the bearing platform, and the heating rod is located in the heating pipe hole; The refrigeration liquid pipeline and the heating rod are in the same horizontal plane in the supporting platform, or the refrigeration liquid pipeline and the heating rod are staggered up and down.

7. The temperature-controlled magnetic stirrer according to any one of claims 1 to 6, characterized in that: The driving mechanism includes a plurality of first driving motors, which are connected to the magnetic members in a one-to-one correspondence, and the plurality of first driving motors are used to drive the corresponding magnetic members to rotate in the same direction at the same time.

8. The temperature-controlled magnetic stirrer according to claim 7, characterized in that: The magnetic member is a magnetic rod, the axial direction of the magnetic rod is parallel to the height direction of the supporting platform; a plurality of the magnetic rods are arranged in an array.

9. The temperature-controlled magnetic stirrer according to claim 8, characterized in that: A water collecting tray is provided at the upper end of the base, the carrying platform is provided on the water collecting tray, and the water collecting tray is provided with a drainage joint, so that the condensed water generated by the carrying platform can flow to the water collecting tray and then be discharged through the drainage joint; The water collecting tray is provided with a plurality of through holes, the through holes corresponding to the positions of the magnetic bars, one end of the magnetic bar is connected to the first driving motor, and the other end of the magnetic bar passes through the through holes and extends toward the supporting platform.

10. The temperature-controlled magnetic stirrer according to any one of claims 1 to 6, characterized in that: The driving mechanism includes a second driving motor and a transmission assembly, the transmission assembly includes a driving gear and two driven gears, the two driven gears are arranged on both sides of the driving gear opposite to each other and are respectively meshed with the driving gear, the second driving motor is connected to the driving gear, the driven gears are connected to the magnetic parts in a one-to-one correspondence, and the second driving motor is used to drive the driving gear to rotate to drive the two driven gears to rotate, so that the two magnetic parts rotate in the same direction.

11. The temperature-controlled magnetic stirrer according to claim 10, characterized in that: The magnetic member is a plate-shaped magnet, the driven gear is connected to the center of the plate-shaped magnet, and the extension direction of the plate-shaped magnet is parallel to the surface of the supporting platform facing away from the reaction container.

12. A temperature-controlled magnetic stirring device, characterized in that: include: A transfer device and a temperature-controlled magnetic stirrer as described in any one of claims 1 to 11, wherein the transfer device is used to take and place reaction containers on the temperature-controlled magnetic stirrer.

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